遍历二维矩阵所有路径

#!/usr/bin/env python

# -*- coding: utf-8 -*-

def printList(datalist = []):

for i in range(len(datalist)):

print datalist[i]

def mergeList(list1, list2 = []):

if len(list1) == 0:

return list2

if len(list2) == 0:

return list1

list3 = []

for list1_i in range(len(list1)):

for list2_i in range(len(list2)):

list3_item = str(list1[list1_i]) + '-' + str(list2[list2_i])

list3.append(list3_item)

return list3

def row2columnList(datalist = []):

list_cr = [[]]

for col in range(len(datalist[0])):

list_tmp = []

for row in range(len(datalist)):

list_tmp.append(datalist[row][col])

list_cr.append(list_tmp)

return list_cr

def traversalPath(datalist = []):

list_tmp = []

for row in range(len(datalist)):

list_tmp = mergeList(list_tmp, datalist[row])

return list_tmp

if __name__=='__main__':

M = [['a1', 'b1', 'c1', 'd1', 'e1'],['a2', 'b2', 'c2', 'd2', 'e2'],['a3', 'b3', 'c3', 'd3', 'e3']]

M_tmp = row2columnList(M)

tp_list = traversalPath(M_tmp)

printList(tp_list)

print len(tp_list)